Efficient energy-saving type insulation board fixing device

Abstract

The utility model provides a kind of high efficiency energy-saving type insulation board fixing device, including self-tapping screw, expansion sleeve, the expansion sleeve is active sleeve in self-tapping screw, the tail of self-tapping screw and expansion sleeve expansion extrusion match.The expansion sleeve includes elastic cylinder, one end of the elastic cylinder is fixedly connected with stop green, groove is set in the inside of the elastic cylinder, stop green.When the tail of expansion sleeve is not contacted on the outside of wall, make self-tapping screw drive expansion sleeve together into hole, until the tail of expansion sleeve is blocked by wall, make self-tapping screw drill alone, so that the tail of self-tapping screw enters the inside of expansion sleeve and collides with the tail of expansion sleeve, make expansion sleeve act on hole outward, facilitate self-drilling hole, and also guarantee firmness, improve practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of insulation board fasteners, and in particular relates to a high-efficiency and energy-saving insulation board fastening device. Background Technology

[0002] High-efficiency energy-saving insulation boards are a new type of building material with "ultimate thermal insulation" as their core advantage. Through optimized material formulation and structural design, they achieve energy-saving efficiency far exceeding that of ordinary insulation boards. Their core lies in using high-quality core materials with low thermal conductivity (such as vacuum insulation boards, aerogel composite insulation materials, and modified high-density polystyrene boards). Some products further reduce heat transfer loss through composite structures and sealing processes, achieving higher insulation performance with thinner thicknesses.

[0003] High-efficiency energy-saving insulation boards are mainly fixed using insulation nails, self-tapping screws, or glue. While self-tapping screws can quickly install high-efficiency energy-saving insulation boards, they rely solely on thread friction for fixation, making them less secure than insulation nails. Although insulation nails can expand to enhance their strength, they require drilling holes beforehand, inserting the nail, and then tightening it, which is very cumbersome. This results in the relatively low practicality of conventional fasteners for high-efficiency energy-saving insulation boards.

[0004] Therefore, we propose a high-efficiency and energy-saving insulation board fixing device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem of low practicality of conventional high-efficiency energy-saving insulation board fasteners, and to propose a high-efficiency energy-saving insulation board fastening device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A high-efficiency, energy-saving insulation board fixing device includes a self-tapping screw and an expansion sleeve. The expansion sleeve is movably fitted onto the self-tapping screw, and the tail of the self-tapping screw expands and presses against the expansion sleeve. Using an electric drill, the self-tapping screw is driven into the wall. When the tail of the expansion sleeve is not in contact with the outside of the wall, the self-tapping screw pulls the expansion sleeve into the hole until the tail of the expansion sleeve is obstructed by the wall. The self-tapping screw then drills in alone, causing the tail of the self-tapping screw to collide with the tail of the expansion sleeve inside, causing the expansion sleeve to act outwards into the hole. This facilitates self-drilling while ensuring firmness and improving practicality.

[0007] Preferably, the expansion sleeve includes an elastic cylinder, one end of which is fixedly connected to a flange. The elastic cylinder and flange have internal slots. When the tail of the self-tapping screw enters the elastic cylinder, the screw expands the elastic cylinder outwards, causing it to act outwards onto the hole, thus expanding and fixing the expansion sleeve within the hole.

[0008] Preferably, the outer surface of the elastic cylinder is uniformly provided with anti-slip grooves. These anti-slip grooves increase the friction between the elastic cylinder and the holes, further improving its stability.

[0009] Preferably, the self-tapping screw includes a screw body, one end of which is fixedly connected to a threaded drill bit, and another end of which is fixedly connected to a knob. A pressing block is fixedly connected to the tail of the screw body. Using an electric drill, the knob is rotated, causing the screw body to rotate, which in turn causes the threaded drill bit to rotate, allowing the drill bit to penetrate the wall until the flange contacts the outer surface of the wall. At this point, the pressing block enters the elastic sleeve, causing the tail of the elastic sleeve to expand outwards, facilitating the fixing of the expansion sleeve within the wall.

[0010] Preferably, the self-tapping screw further includes a retaining ring, which is fixedly connected between the compression block and the knob. The retaining ring enters the elastic cylinder to maintain the cylinder's expanded state.

[0011] In summary, the technical effects and advantages of this utility model are as follows: 1. Use an electric drill to drive the self-tapping screw into the wall. When the tail of the expansion sleeve is not in contact with the outside of the wall, let the self-tapping screw drive the expansion sleeve into the hole together until the tail of the expansion sleeve is blocked by the wall. Then, let the self-tapping screw drill in alone. This allows the tail of the self-tapping screw to enter the expansion sleeve and collide with the tail of the expansion sleeve. This causes the expansion sleeve to act outward into the hole, which facilitates self-drilling while ensuring firmness and improving practicality.

[0012] 2. After the tail of the self-tapping screw enters the interior of the elastic cylinder, the elastic cylinder expands outward through the self-tapping screw, causing the elastic cylinder to act outward into the hole, so that the expansion sleeve expands and is fixed in the hole, making it convenient for the expansion sleeve to expand and be fixed in the hole.

[0013] 3. Use an electric drill to turn the knob, which in turn rotates the nail body, which in turn rotates the threaded drill bit, causing the threaded drill bit to drill into the wall until the flange contacts the outer surface of the wall. Then, the compression block enters the elastic cylinder, causing the tail of the elastic cylinder to expand outward, making it easier to fix the expansion sleeve inside the wall. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the expansion sleeve structure of this utility model; Figure 3 This is a schematic diagram of the self-tapping screw structure of this utility model.

[0015] In the diagram: 2. Expansion sleeve; 3. Self-tapping screw; 21. Elastic cylinder; 22. Anti-slip groove; 23. Slot; 24. Flange; 31. Screw body; 32. Threaded drill bit; 33. Extrusion block; 34. Retaining ring; 35. Knob. Detailed Implementation

[0016] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0017] like Figure 1 As shown, a high-efficiency energy-saving insulation board fixing device includes a self-tapping screw 3 and an expansion sleeve 2. The expansion sleeve 2 is movably fitted onto the self-tapping screw 3, and the tail of the self-tapping screw 3 expands and squeezes into the expansion sleeve 2. Using an electric drill, the self-tapping screw 3 is driven into the wall. When the tail of the expansion sleeve 2 is not in contact with the outside of the wall, the self-tapping screw 3 drives the expansion sleeve 2 into the hole together until the tail of the expansion sleeve 2 is obstructed by the wall, allowing the self-tapping screw 3 to drill in alone. This causes the tail of the self-tapping screw 3 to enter the interior of the expansion sleeve 2 and collide with the tail of the expansion sleeve 2, causing the expansion sleeve 2 to act outwards into the hole.

[0018] like Figure 1 and 2 As shown, the expansion sleeve 2 includes an elastic cylinder 21, one end of which is fixedly connected to a flange 24. The elastic cylinder 21 and flange 24 have slots 23 inside. When the tail of the self-tapping screw 3 enters the elastic cylinder 21, the self-tapping screw 3 expands the elastic cylinder 21 outwards, causing the elastic cylinder 21 to act outwards into the hole, thus expanding and fixing the expansion sleeve 2 within the hole.

[0019] like Figure 2 As shown, anti-slip grooves 22 are evenly distributed on the outside of the elastic cylinder 21. The anti-slip grooves 22 increase the friction between the elastic cylinder 21 and the hole.

[0020] like Figure 1 , 2 As shown in Figure 3, the self-tapping screw 3 includes a screw body 31, a threaded drill bit 32 fixedly connected to one end of the screw body 31, a knob 35 fixedly connected to one end of the screw body 31, and a pressing block 33 fixedly connected to the tail of the screw body 31. Using an electric drill, the knob 35 is rotated, causing the screw body 31 to rotate, which in turn causes the threaded drill bit 32 to rotate, allowing the threaded drill bit 32 to drill into the wall until the flange 24 contacts the outer surface of the wall. Then, the pressing block 33 enters the elastic cylinder 21, causing the tail of the elastic cylinder 21 to expand outwards.

[0021] like Figure 1 , 2 As shown in Figure 3, the self-tapping screw 3 also includes a retaining ring 34, which is fixedly connected between the pressing block 33 and the knob 35. The retaining ring 34 enters the elastic cylinder 21 to maintain the elastic cylinder 21 in an expanded state.

[0022] Working principle: The self-tapping screw 3 is driven into the wall by an electric drill. When the tail of the expansion sleeve 2 is not in contact with the outside of the wall, the self-tapping screw 3 drives the expansion sleeve 2 into the hole together until the tail of the expansion sleeve 2 is blocked by the wall. Then the self-tapping screw 3 is drilled in alone, so that the tail of the self-tapping screw 3 enters the expansion sleeve 2 and collides with the tail of the expansion sleeve 2, causing the expansion sleeve 2 to act outward into the hole.

[0023] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.

[0024] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.

Claims

1. A high-efficiency energy-saving insulation board fixing device, characterized in that: Includes a self-tapping screw (3) and an expansion sleeve (2), wherein the expansion sleeve (2) is movably fitted on the self-tapping screw (3), and the tail of the self-tapping screw (3) is expanded and squeezed to match the expansion sleeve (2).

2. The high-efficiency energy-saving insulation board fixing device according to claim 1, characterized in that: The expansion sleeve (2) includes an elastic cylinder (21), one end of which is fixedly connected to a baffle (24), and the elastic cylinder (21) and the baffle (24) are provided with slots (23).

3. The high-efficiency energy-saving insulation board fixing device according to claim 2, characterized in that: The outer surface of the elastic cylinder (21) is uniformly provided with anti-slip grooves (22).

4. The high-efficiency energy-saving insulation board fixing device according to claim 1, characterized in that: The self-tapping screw (3) includes a screw body (31), one end of which is fixedly connected to a threaded drill bit (32), one end of which is fixedly connected to a knob (35), and the tail of which is fixedly connected to a pressing block (33).

5. The high-efficiency energy-saving insulation board fixing device according to claim 4, characterized in that: The self-tapping screw (3) also includes a retaining ring (34), which is fixedly connected between the pressing block (33) and the knob (35).

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